Revision 27bfa7b1b87d081df9d714144cf1e6aae2b87b19 authored by Damien Doligez on 19 August 2004, 12:52:17 UTC, committed by Damien Doligez on 19 August 2004, 12:52:17 UTC
git-svn-id: http://caml.inria.fr/svn/ocaml/version/3.08@6606 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
1 parent 510ea35
quicksort2.cmm
(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(function "cmp" (i: int j: int)
(- i j))
(function "quick" (lo: int hi: int a: addr cmp: addr)
(if (< lo hi)
(let (i lo
j hi
pivot (intaref a hi))
(while (< i j)
(catch
(while 1
(if (>= i hi) exit [])
(if (> (app cmp (intaref a i) pivot int) 0) exit [])
(assign i (+ i 1)))
with [])
(catch
(while 1
(if (<= j lo) exit [])
(if (< (app cmp (intaref a j) pivot int) 0) exit [])
(assign j (- j 1)))
with [])
(if (< i j)
(let temp (intaref a i)
(intaset a i (intaref a j))
(intaset a j temp))
[]))
(let temp (intaref a i)
(intaset a i (intaref a hi))
(intaset a hi temp))
(app "quick" lo (- i 1) a cmp unit)
(app "quick" (+ i 1) hi a cmp unit))
[]))
(function "quicksort" (lo: int hi: int a: addr)
(app "quick" lo hi a "cmp" unit))
Computing file changes ...